Paper-hanger&#39;s folding straightedge



I Afiril 28, 1925 c. w. HARSIN PAPER HANGERS FOLDING .STRAIGHTEDGE Filed Dec. 21-. 1920 Patented Apr. 28,1925,

UNITED STATES ream PATENT OFFICE.

PAPER-HANGERS FOLDING STBAIGHTEIDGE.

Application filed December 21, 1920.

To all 2071 am it may concern:

Be it known that I, CLARENCE V. HAnsiN,

a citizen of the United States, residing at Los Angeles, in the county of Los Angeles 5 and State of California, have invented a Paper-Hangefis Folding Straight-edge, such as is used by paper hangers, etc., which may the more easily be carried or packed for shipment.

This invention relates to a folding straightedge particularly adapted for the use of paper hangers or other artisans using a similar device and it is the object of this invention to generally improve upon the existing structures and to provide a novel means whereby the straightedge may be easily carried or packed for shipment by providing suitable means for folding the same.

More specifically, the object is to provide suitable means to lock the folded portions of the straigh'tedge into perfect alinoment when the same is to be used.

F With the foregoing and other objects in view, my invention consists in. certain novel 'lt-iatures of construction and arrangement of par-ls that will be hereinafter more fully described and claimed. and illustrated in the accompanying drawings in which:

.l ig. 1 is a perspective of the rear portion of the folding sections of the straightedge in alinement.

is a front elevation showing the Fig. a locking bar in locking position.

Fig. 3 is an end elevation of the straightedge.

l ig. l: is a perspective of the straightedge partially folded.

Fig. 5') is an edge View of the straightedge folded.

M improved folding slraightedge CUIIP )ri substuntiziilly the wooden body portion 1 of the folding sections which are piv otally connected together as by hinge-s 3 fas tened on the rear side of the body portion. The usual wearing strips 4 are positioned on Serial No. 432,310.

the upper and lower edges of the body portion and extend beyond one side of the body as at 5. v

This locking joint comprises substan tially a recess 6 formed in one side of the body portion and terminates intermediate the ends of one of the folding sections 2 and extends the full length of the opposite folding section. The two recesses being in alinement when the straightedge is unfolded, a suitable locking bar 7 may be slidably positioned within the recess 6 of both sections and retaining strips 8 may be fastened to the body portion so as to slightly overlap the recess and thereby hold the locking bar from falling out and also hold the two sections in perfect alinement. hen it is desired to fold the straightedge, the bar may be shifted back within the portion which has the slot eX tending its full. length as is shown in 4. The overhanging portion-s 5 of the wearing strips 4-. provide straight edges when the sections of the device are in fully extended position.

I claim:

A folding straightedge comprising two sections having bodies fitting together end to end and having front and back faces, hinges secured to the back faces of the meeting ends, wearing strips secured to the edges of the bodies and extending beyond the front faces, there being a recess formed in the front face of one body and extending from the meeting end and a second recess formed in the front face of the other body and extending the full length, a locking bar slidably mounted in the recesses and retaining strips fastened to thebodies to hold the look- .ing bar in place so that the locking bar may he nmved into the long recess out of use and the rule folded and moved across the meeting line when the rule is straightened to hold the rule straight.

CLARENCE W. HARSIN. 

